Home / 313,823.08-470,730.53-77,167.81

Finding the Fourth Proportional to 313,823.08, 470,730.53 and 77,167.81

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Solution

The fourth proportional to 313,823.08, 470,730.53 and 77,167.81 is: 115,750.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,823.08 : 470,730.53 = 77,167.81 : x
  2. Step 2: Convert to fraction form
    313,823.08/470,730.53 = 77,167.81/x
  3. Step 3: Cross multiply
    313,823.08x = 470,730.53 × 77,167.81
  4. Step 4: Simplify right side
    313,823.08x = 36,325,243,714.40
  5. Step 5: Solve for x
    x = 36,325,243,714.40/313,823.08
  6. Step 6: Final answer
    x = 115,750.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.